The invention discloses a casting mold manufacturing device which comprises a frame. An upper mold, a lower mold, a mold connecting wheel frame, a driving mechanism, a sand-shooting mechanism, a stripping mechanism and a pushing mechanism are arranged on the frame, molds are smoothly assembled through the mold connecting wheel frame, the molds move and are positioned along the horizontal and perpendicular direction through the driving mechanism, the casting molds are formed through the sand-shooting mechanism, the casting molds automatically move out through the stripping mechanism and the pushing mechanism, the upper mold is mounted on an upper mold moving support, an upper mold driving cylinder drives the upper mold moving support to slide along a mold guide wheel group, a front limiting component and a rear limiting component are arranged at two ends of the mold guide wheel group, and the stripping mechanism matched with the upper mold is mounted on one side of the upper mold and positioned above a receiving mechanism. According to the casting mold manufacturing device, the sand-shooting mechanism, a mold feeding mechanism, a mold discharging mechanism, the receiving mechanism and the pushing mechanism are comprehensively matched, production ranges of the casting molds are widened, the finished product ratio of the casting molds is ensured, the molds are conveniently and rapidly mounted and adjusted, labor intensity is reduced, and working efficiency is improved.